78181978

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 136865664

約数和(自身を除く): 58683686

約数列:

[1, 2, 7, 14, 73, 146, 227, 337, 454, 511, 674, 1022, 1589, 2359, 3178, 4718, 16571, 24601, 33142, 49202, 76499, 115997, 152998, 172207, 231994, 344414, 535493, 1070986, 5584427, 11168854, 39090989, 78181978]

約数ペア:

[(1, 78181978), (2, 39090989), (7, 11168854), (14, 5584427), (73, 1070986), (146, 535493), (227, 344414), (337, 231994), (454, 172207), (511, 152998), (674, 115997), (1022, 76499), (1589, 49202), (2359, 33142), (3178, 24601), (4718, 16571)]